Is PQQ Better Than Vitamin C?

by: GSHWORLD Time: 2026-03-11 Classify: Product News

PQQ and vitamin C are both natural antioxidant substances, each with distinct physicochemical properties, mechanisms of action, and physiological values.

Rather than a simple comparison of superiority or inferiority, they exist in a complementary and synergistic relationship, suited to different physiological needs and application scenarios.

The following analysis examines their core characteristics to provide an objective comparison of their respective values.

Antioxidant Properties

Vitamin C is a classic water-soluble antioxidant that scavenges free radicals by directly donating hydrogen.

It serves as a fundamental component of the body's antioxidant system, acting directly and rapidly.

PQQ, on the other hand, is a redox cofactor with antioxidant efficiency significantly higher than vitamin C on a molar basis.

Through its own redox cycling, PQQ can continuously catalyze free radical scavenging while also reducing the generation of free radicals at their source.

This dual action of "scavenging + prevention" gives PQQ greater prominence in terms of antioxidant sustainability and efficiency.

Mechanism of Action

Vitamin C primarily functions through direct antioxidant activity, replenishing the body's antioxidant reserves, alleviating acute oxidative stress, and participating in basic physiological processes such as collagen synthesis—relatively straightforward pathways.

PQQ is not merely an antioxidant; its core mechanism involves activating pathways related to mitochondrial biogenesis, enhancing the body's antioxidant capacity at the cellular energy metabolism level.

Additionally, PQQ can regulate multiple cellular signaling pathways, encompassing antioxidant activity, cell proliferation, and functional modulation—offering richer dimensions of action.

Biosynthesis

Vitamin C is an essential nutrient for humans; the body cannot synthesize it and must obtain it entirely through diet or supplements.

Deficiency directly leads to specific physiological problems.

Similarly, PQQ cannot be synthesized by the human body and is only produced by certain microorganisms.

Humans must acquire PQQ from food.

Although not officially classified as a vitamin, PQQ deficiency can affect normal growth and metabolism.

Both are indispensable exogenous nutrients for the human body.

Food Sources

Vitamin C is widely available in fresh fruits and vegetables, such as citrus fruits, kiwifruit, and bell peppers.

These ingredients are easily accessible, and daily diets can readily meet basic requirements.

PQQ is relatively dispersed in nature, found primarily in fermented foods, certain vegetables, and tea.

Natural food sources contain low levels of PQQ, making it difficult to obtain sufficient amounts through daily diet alone.

Supplementation often relies on specialized formulations, making it less convenient to acquire than vitamin C.

Application Scenarios

Vitamin C serves as a foundational antioxidant nutritional supplement, suitable for daily dietary balance and meeting basic antioxidant needs.

It has broad applicability across various populations as a fundamental nutritional choice.

PQQ, with its dual role in antioxidant activity and mitochondrial regulation, is better suited for targeted physiological enhancement.

As a functional ingredient in nutritional supplements, it is appropriate for individuals with specific physiological needs, making its applications more targeted.

Conclusion

PQQ and vitamin C are not substitutes for one another; each has distinct advantages.

Vitamin C forms the foundation of human antioxidant defense, offering broad applicability and easy accessibility—it is an essential choice for daily nutrition.

PQQ excels in antioxidant efficiency and physiological functional regulation, making it an excellent option for targeted nutritional supplementation.

When used together, they can achieve a dual effect of "foundational protection + efficient regulation," better addressing the body's diverse nutritional needs.

References

[1] Akagawa M. Nutritional and physiological properties of pyrroloquinoline quinone (PQQ), a vitamin candidate substance [J]. Shikoku Medical Journal, 2025, 80(5,6): 179-184.

[2] Naveed M, Tariq K, Sadia H, et al. The Life History of Pyrroloquinoline Quinone (PQQ): A Versatile Molecule with Novel Impacts on Living Systems [J]. International Journal of Molecular Biology, 2017, 1(1): 1-20.

*Special note - This article is for informational purposes only and cannot replace a doctor's treatment diagnosis and advice. It should not be regarded as a recommendation or proof of efficacy of the medical products involved. If it involves disease diagnosis, treatment, and rehabilitation, please be sure to go to a professional medical institution to seek professional advice.